JPH0136187B2 - - Google Patents

Info

Publication number
JPH0136187B2
JPH0136187B2 JP58131113A JP13111383A JPH0136187B2 JP H0136187 B2 JPH0136187 B2 JP H0136187B2 JP 58131113 A JP58131113 A JP 58131113A JP 13111383 A JP13111383 A JP 13111383A JP H0136187 B2 JPH0136187 B2 JP H0136187B2
Authority
JP
Japan
Prior art keywords
servo
signal
track
control
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP58131113A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5984383A (ja
Inventor
Hairamu Hansen Neirusu
Kingu Heinzu Manro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPS5984383A publication Critical patent/JPS5984383A/ja
Publication of JPH0136187B2 publication Critical patent/JPH0136187B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59633—Servo formatting
    • G11B5/5965—Embedded servo format

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Control Of Position Or Direction (AREA)
JP58131113A 1982-11-01 1983-07-20 磁気ヘツド用サ−ボ装置 Granted JPS5984383A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/438,218 US4488188A (en) 1982-11-01 1982-11-01 Buried servo recording system using phase encoded servo pattern
US438218 1982-11-01

Publications (2)

Publication Number Publication Date
JPS5984383A JPS5984383A (ja) 1984-05-16
JPH0136187B2 true JPH0136187B2 (de) 1989-07-28

Family

ID=23739735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58131113A Granted JPS5984383A (ja) 1982-11-01 1983-07-20 磁気ヘツド用サ−ボ装置

Country Status (4)

Country Link
US (1) US4488188A (de)
EP (1) EP0108224B1 (de)
JP (1) JPS5984383A (de)
DE (1) DE3374728D1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549232A (en) * 1983-06-27 1985-10-22 International Business Machines Corporation Phase modulated servo system
EP0247829A1 (de) * 1986-05-26 1987-12-02 Pioneer Electronic Corporation Verfahren und Vorrichtung zur Korrektur der Schleifenverstärkung einer feineinstellbaren Servoschleife
US4951162A (en) * 1986-11-06 1990-08-21 Canon Kabushiki Kaisha Tracking control system with pilot signal phase setting circuitry
DE3706159A1 (de) * 1987-02-26 1988-09-08 Thomson Brandt Gmbh Verfahren zur spurfindung bei einem aufzeichnungsgeraet
US5245487A (en) * 1989-01-27 1993-09-14 International Business Machines Corporation Transducer head for rigid disk drive
US5319502A (en) * 1992-01-10 1994-06-07 International Business Machines Corporation System and method for employing buried servos within a magnetic recording medium
US5615065A (en) * 1994-10-04 1997-03-25 International Business Machines Corporation Phase-compensated servo pattern and position error-sensing detector
US5600506A (en) * 1995-05-10 1997-02-04 Conner Peripherals, Inc. Apparatus and method for determining the position of a transducer relative to a disk surface in a disk drive system
US5801895A (en) * 1996-05-28 1998-09-01 Hewlett Packard Company Disk drive servo demodulation system which suppresses noise on the position error signal
US5966264A (en) * 1997-08-07 1999-10-12 International Business Machines Cororation Two frequency servo PES pattern
US6025970A (en) * 1997-08-07 2000-02-15 International Business Machines Corporation Digital demodulation of a complementary two-frequency servo PES pattern
US6496328B1 (en) 1999-12-30 2002-12-17 Advanced Research Corporation Low inductance, ferrite sub-gap substrate structure for surface film magnetic recording heads
US7106544B2 (en) * 2003-05-09 2006-09-12 Advanced Research Corporation Servo systems, servo heads, servo patterns for data storage especially for reading, writing, and recording in magnetic recording tape
US8144424B2 (en) 2003-12-19 2012-03-27 Dugas Matthew P Timing-based servo verify head and magnetic media made therewith
US7450341B2 (en) 2004-05-04 2008-11-11 Advanced Research Corporation Intergrated thin film subgap subpole structure for arbitrary gap pattern magnetic recording heads and method of making the same
US7209314B2 (en) * 2005-06-09 2007-04-24 Hitachi Global Storage Technologies Netherlands B.V. Disk drive with phase-quadrature servo pattern and demodulated position error signal insensitive to timing and phase-misalignment errors
US8068302B2 (en) 2008-03-28 2011-11-29 Advanced Research Corporation Method of formatting magnetic media using a thin film planar arbitrary gap pattern magnetic head
US8767331B2 (en) 2009-07-31 2014-07-01 Advanced Research Corporation Erase drive system and methods of erasure for tape data cartridge
US8922926B2 (en) 2011-11-21 2014-12-30 Agency for Science, Technology Research Data recording medium and method for generating a reference clock signal
US9336829B2 (en) 2011-11-21 2016-05-10 Marvell International Ltd. Data recording medium, method for generating a reference clock signal, and data storage device
GB2503483A (en) 2012-06-28 2014-01-01 Ibm Magnetic tape servo patterns and servo write head
US9070410B2 (en) 2012-07-20 2015-06-30 Marvell International Ltd. Recording media, data storage devices, and methods for determining a position error signal in a recording medium

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE640044A (de) * 1962-11-30 1964-03-16
US3427606A (en) * 1966-03-02 1969-02-11 Ibm Memory system
US3821798A (en) * 1972-02-18 1974-06-28 Ibm Resynchronizable recording system
BE794737A (fr) * 1972-02-18 1973-05-16 Ibm Systemes d'enregistrement de signaux digitaux
US3956769A (en) * 1974-08-12 1976-05-11 Control Data Corporation Recording system having coinciding servo and data tracks
US4213148A (en) * 1978-09-01 1980-07-15 Rca Corporation Recording/playback apparatus using a single pilot tone for active tracking and control of a video disc pickup device
US4318141A (en) * 1979-12-07 1982-03-02 International Business Machines Corp. Buried servo recording systems and methods
US4286296A (en) * 1979-12-31 1981-08-25 International Business Machines Corporation Transducer positioning system
US4432026A (en) * 1981-08-10 1984-02-14 Ampex Corporation Apparatus and method for determining read head position

Also Published As

Publication number Publication date
DE3374728D1 (en) 1988-01-07
EP0108224B1 (de) 1987-11-25
JPS5984383A (ja) 1984-05-16
EP0108224A1 (de) 1984-05-16
US4488188A (en) 1984-12-11

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